Apparatus for automatically applying car-brakes.



No. 653,634. Patented July I0, I900. S. F. WOODWORTH.

APPARATUS FOR AUTOMATICALLY APPLYING GAR BRAKES.

(Application filed Nov. 11, 1899.)

(No Model.)

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lli llii ZML'ZFQQJ sea 1% uenl'ar Patented July In, I900. s. F. woonwonrn. APPARATUS FOR AUTOMATICALLY APPLYING CAR BRAKES.

2 Sheets-Sheet 2.

(No Model.)

Ina/6217b r/ UNITED STATES PATENT OFFICE.

sILAsF. WOODWORTH, OF CLIPPER GAP, CALIFORNIA.

APPARATUS FOR AUTOMATICALLY APPLYING CAR-BRAKES.

SPECIFICATION forming part of Letters Patent no. 653,634, dated July 10, 1900. Application filed November 11, 1899. Serial No. 736,720. (No model.)

My invention relates to an improvement in devices having for their object the applying automatically of air-brakes in emergencies in volving the derailment of a truck or part of a truck. I attain this object by mechanism illustrated in the annexed drawings, in which Figure 1 is a topview, and Fig. 2 a side.

view, of so much of a pilot-truck of a locomotive as is necessary to show my apparatus; and Fig. 3 is a detail view from in front of the cutting device which cuts the air-tube, reducing pressure in the train-pipe, and applies the brakes.

Similar numbers refer to similar parts throughout the several views. I 7

It is obvious that the drawings of the apparatus as applied to the pilot-truck, having its wheels outside of the bearings or boxes, would require some change in adapting it to a twelve-wheel passenger-coach or an eightwheel freight-car, whose'wheels are inside of the boxes; but this may readily be done without abandoning the broad principles of theinvention.

, To the train-pipe 1 is fitteda small male T. To this maleT is connected the flexible tube or hose 3. This hose 3 (a fter several turns around the train-pipe) passes right and left" to the cutting device, Fig. 3, and afterpass ing through the shearing-bar e is plugged, tightly in the fixed jaw or bracket 4," as shown,

Fig. 3, by the taper plug 8, thus making it both air-tight and secure by the simplest of;

The cutting device, Fig. 3, is bolted to theequalizing-bar 9 just back of the forward wheels, and in case of derailment as one flange climbs the rail and drops down outside the opposite wheel will drop inside of the other rail, thus bringing its cuttingbar 5 in contact with the rail, cutting the Wood pins 6 and the air-hose 3, whereupon the air will escape from the 'cut end of V the air-hose and all the brakes of the train will be instantly applied. The bracket etis cored out, as shown by dotted lines, Fig. 2, thus permitting the movable jaw 5 to shear off the pins 6 and the tube 3 whenever its lower end meets with any obstruction-such, for instance, as the ties or ballast between them during the forward or backward movement of the train, so that were it to miss the rail entirely it still remains effective as adapted to a locomotive.

I have chosen to locate the cutter-bar 5 inside of avertical line from the rail-crown for the reason that when going upon and leaving a turn-table the ends of the table will settle so much below the level of the converging and diverging tracks that were the bar 5 placedin line with the wheels directly over the rail-crownthis settling of the table ends would cause contact with the rail unless the vcutter 5 were fixed at so great a height as to lessen or destroy its efficiency. With passen= ger or freight cars (which never cross a turntable) the cutting-bar 5 may be fixed above the rail in line with the wheels.

I am aware that prior to my invention apparatus for automaticallyapplyingcar-brakes were known as follows: first, by opening a valve in the train-pipe by means of connecting said valve or cook (by means of rods, arms, rocker-shafts, and links) to levers or shoes adapted to contact with the rail; sec-. 0nd, by frangible sockets connected with the train-pipe and arranged with reference to some part of the car or its trucks or with an adjacent car, so as to be broken by the irregm larrnotion resulting from derailment, and, third, by a frangible socket connected with the train-pipe and arranged to be broken or crushed by a lever actuated by mechanism ing car-brakes, the cutting device consisting able cutter the fixed part 4 and the flexible of a fixed part 4and movable part 5 arranged tube 3 all substantially as,and for the purpose with relation to the rail and its substructure specified and shown.

and adapted to sever the flexible tube sub- SILAS F. WOODVVORTH. 5 stantially as shown for the purpose set forth. Witnesses:

2. In an apparatus forautomaticallyapply- J. G. MCCLOUD,

ing car-brakes, the combination of the mov- W. G. BANCROFT. 

